I created a virtual machine (object) in Hyper-V Manager, and when I tried to start the virtual machine, I received the following error: The virtual machine could not be started because the hypervisor is not running.

Solution

I restated the Hyper-V server , and entered its BIOS. In the BIOS under processor options I have noticed that the Virtualization Technology is disabled.

I have installed VMware Workstation 6.5.4 on top of Windows 2008 R2, and while I tried to resume one of my virtual machines (which I moved to Suspended State), I’ve received the following error: Cannot find a valid peer process to connect to.

Solution

1. Open task manager and kill vmware-auth.exe process.

2. Open services.msc as administrator (Right Click on Services > Open as Administrator) and restart “VMware Authorization service”

I was logged in to Windows 2003 SP2 server with an administrative user account which is administrator on the server, but when I have trired to install acerain software I received the following error:

Windows cannot access the specified device path or file. You may not have appropriate permissions.

Solution

It was very odd but the solution was to uninstall “internet explorer enhanced security configuration” from : control panel > add/remove programs > add/remove windows component , and it solved the problem.

When we connected to lab manager 4 web console , all virtual Machines appeared as unavailable. In addition, in the Overview page we saw the following massage: Alert! vCenter Lab Manager is Currently Not Connected to vCenter (as shown below)

We restarted the Lab Manager service but it didn’t work. We even restarted the management service of the Lab Manager ESX hosts, but it didn’t work as well.

Solution

Go to System > Settings > vCenter® , and enter the user name and password again. That worked for us!